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Finding the Fourth Proportional to 619,377.80, 928,836.30 and 245,323.40

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Solution

The fourth proportional to 619,377.80, 928,836.30 and 245,323.40 is: 367,893.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,377.80 : 928,836.30 = 245,323.40 : x
  2. Step 2: Convert to fraction form
    619,377.80/928,836.30 = 245,323.40/x
  3. Step 3: Cross multiply
    619,377.80x = 928,836.30 × 245,323.40
  4. Step 4: Simplify right side
    619,377.80x = 227,865,279,159.42
  5. Step 5: Solve for x
    x = 227,865,279,159.42/619,377.80
  6. Step 6: Final answer
    x = 367,893.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.